package config

import (
	"encoding/json"
	"io/ioutil"
	"os"
)

type Config struct {
	Interval Duration
	States   []State
}

var live Config

func Refresh() error {
	configPath, ok := os.LookupEnv("CONFIG")
	if !ok {
		configPath = "./config.json"
	}
	b, err := ioutil.ReadFile(configPath)
	if err != nil {
		return err
	}
	var c Config
	if err := json.Unmarshal(b, &c); err != nil {
		return err
	}
	live = c
	return nil
}

func Get() Config {
	return live
}